Concrete floolq



J. MOMILLEN.

CONCRETE FLOOR.

APPLIOATION FILED MAY 1s, 190s.

Ba-tented June 22, 1909.

' WMM/[k UNITED sTATEs PATENT oEEioE. f

JAMES MCMILLEN, OF RALEIGH, NORTH CAROLINA, ASSIGNOR OF ONE-HALF TO E. C. WOOD- l WARD, OF RICHMOND, VIRGINIA.

CONCRETE FLooiO.

Patented June 22, 1909.

i `To all whom it may concern:

Beit known that I, JAMES McMiLLEN, a,

citizen of the United States of America, re`- siding at Raleigh, in the county of Wake and State of North Carolina, have invented new and useful Improvements in Concrete Floors, of which the' following is a specification.

My invention relates to improvements in concrete floors.

The primary object ofthe invention is the provision of a floor-structure of this type which includes a plurality of concrete supporting plates provided with flanges which reinforce the concrete, one flange of each plate bein provided with a flange extending downward y and outwardly from the upper 'edge thereof to overlap one of the flanges lof the next adjacent plate, said downwardly and outwardly extending flange preventing the liquid in the concrete flowing downwardly between the plates during the setting of the concrete.

The invention is hereinafter fully disclosed in the accompanyin drawing wherein Figure 1 is an en elevation of a concrete floor structure made in accordance with my invention. Fig. 2 is asectional view thereof, and Fig. 3 is a detail perspective view of a frlagmentary portion of one of the supporting ates. p Referring to the drawing by reference nu- `merals, 1 designates a suportin plate which may be of any len th an widt and which may be constructe of any material suitable for the purpose. The plate is provided with flanges 2 and 3 which extendat right angles thereto and from the same side thereof. The

3 is provided with a flange 4 which exflange `ten s downwardly and outwardly from the upper edge thereof, the flange 4.being wholly arran ed outside of the plane of the plate 1. The

of the plate 1 and formed integral therewith.` 5 designates the supporting beams and 7 the concrete of the floor structure.A

angles are co-extensive in length withthe lengt extend transversely of the supporting beam and are so arranged that the flange 2 of one plate engages the flange 2 of the next ad]a cent plate and the flange 4 of one plate extends down and over the flange 2 of the next adjacent plate. After the plates have been secured in applied position, the concrete 7 1s placed thereon, the concrete consisting of proper roportions of sand, cement and water. Tlie concrete sets about the flanges and is reinforced thereby, the concrete being supported by the plates 1. The flanges 4 prevent the liquid in the concrete from flowing downwardly between the plates during the settinr thereof.

It should be apparent from the above description, taken 1n connectionwith the accompanying drawing, that my improved floor structure is simple, durable and efficient, and that the saine may be set up in av com aratively short time and at a comparalit beams and provided with flanges extending at right angles thereto and from the same side thereof, one of said flanges being provided with a flange extending downwardly and outwardly from the upper edge thereof and overlapping oneof t e flanges of the next adjacent plate, and. concrete placed -upon the plates. v

In testimony whereof I affix my signature in presence of two Witnesses.

JAMES MOMILLEN.

Witnesses:

. JOHN T. BAIN, WM. LoNG. 

